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In the eastern room, under the vivid explanations and gestures of Gu Yan and Gu Xiaoshun––––with Gu Yan mainly providing explanations and Gu Xiaoshun mainly gesturing––––Gu Jiao finally came to understand the ins and outs of the incident. She had some inside information about Xiao Liulang's origins, but deducing from the conversation between mother and son, there were hidden secrets related to Xiao Liulang's identity and the huge fire four years ago.
Gu Jiao felt that the arsonist should not have been Prince Ning, at least not for the fire that supposedly killed "Xiao Hen".
Princess Xinyang and Prince Ning probably both had the idea to start the fire, but neither succeeded; the former softened her heart and pulled back at the last moment, while the latter was likely stopped by Princess Xinyang before he could act.
So who could it be?
Why do this?
